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Background <p>Switched Reluctance Motors (SRM) are very common in Electric Vehicle (EV) applications because of their simplicity, robustness and cost effectiveness. The SRM is divided into radial and axial based on the magnetic flux path, where axial flux SRMs offer advantages like higher torque density and suitability for EVs. However, several studies have been developed for the radial structure of SRM in EV, whereas axial ones are under-research.</p> Purpose <p>This article proposed a novel 12-8-12 pole axial flux dual stator SRM (AF-DSSRM) for improving motor efficiency and reduced torque ripple for EV applications.</p> Methods <p>Segmented rotors are used in the AF-DSSRM to minimize torque ripple and improve efficiency. The proposed design of AF-DSSRM is established in ANSYS/ MAXWELL software, and the results are verified with an optimized design. The AF-DSSRM is optimized using Artificial Humming Bird Optimization Algorithm (AHBO) in which the important design parameters such as air gap and rotor pole arc angle are changed in the range of 0.1-0.8 mm and 7.9-30.2, respectively.</p> Results <p>Optimal values of 0.5 mm air gap and 23.1° rotor pole arc angle were determined in the optimization process. Having these parameters, the proposed AF-DSSRM had increased the maximum torque by 5.9744 Nm, along with improved efficiency and reduced torque ripple considerably.</p> Conclusion <p>The proposed AF-DSSRM demonstrates superior performance in terms of improved efficiency and reduced torque ripple, making it well suitable for EV applications. Furthermore, the designed motor is optimized through the drive cycle approach, which will be the future scope of this paper.</p>

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Novel Design of Dual Stator Axial Flux Switched Reluctance Motor for In-Wheel Electric Vehicle

  • 期刊论文

  • 发表日期：

    2026年4月18日

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  • L. Sarojini,
  • C. Krishnakumar

摘要

Background

Switched Reluctance Motors (SRM) are very common in Electric Vehicle (EV) applications because of their simplicity, robustness and cost effectiveness. The SRM is divided into radial and axial based on the magnetic flux path, where axial flux SRMs offer advantages like higher torque density and suitability for EVs. However, several studies have been developed for the radial structure of SRM in EV, whereas axial ones are under-research.

Purpose

This article proposed a novel 12-8-12 pole axial flux dual stator SRM (AF-DSSRM) for improving motor efficiency and reduced torque ripple for EV applications.

Methods

Segmented rotors are used in the AF-DSSRM to minimize torque ripple and improve efficiency. The proposed design of AF-DSSRM is established in ANSYS/ MAXWELL software, and the results are verified with an optimized design. The AF-DSSRM is optimized using Artificial Humming Bird Optimization Algorithm (AHBO) in which the important design parameters such as air gap and rotor pole arc angle are changed in the range of 0.1-0.8 mm and 7.9-30.2, respectively.

Results

Optimal values of 0.5 mm air gap and 23.1° rotor pole arc angle were determined in the optimization process. Having these parameters, the proposed AF-DSSRM had increased the maximum torque by 5.9744 Nm, along with improved efficiency and reduced torque ripple considerably.

Conclusion

The proposed AF-DSSRM demonstrates superior performance in terms of improved efficiency and reduced torque ripple, making it well suitable for EV applications. Furthermore, the designed motor is optimized through the drive cycle approach, which will be the future scope of this paper.